1. A 58-year-old male with a history of hypertension and diabetes presents with a complaint of sudden onset of severe headache and blurred vision. Which of the following is the most appropriate initial diagnostic test? A. CT scan of the head B. MRI of the brain C. Blood glucose level D. Fundoscopic examination Answer: A. CT scan of the head Rationale: The sudden onset of severe headache and blurred vision could indicate a cerebrovascular event, and a CT scan is the quickest way to rule out a hemorrhagic stroke. 2. A 65-year-old female patient presents with fatigue, weight gain, and constipation. Her TSH level is 7.5 mIU/L. What is the most likely diagnosis? A. Hyperthyroidism B. Hypothyroidism C. Diabetes mellitus D. Depression Answer: B. Hypothyroidism Rationale: The symptoms and elevated TSH level suggest hypothyroidism, which is common in older adults.